
<html>
<head>
    <title>Title of the document</title>
    <base href="http://www.w3school.com/" />
    <base target="_blank" />
</head>
<body bgcolor="red">
    
<form action="">
用户名：<input type="text" name="username"/><br/>
密码：<input type="password" name="password"/><br/>
<input type="radio" name="sex" value="female">Female<br/>
<input type="radio" name="sex" value="male">male<br/>
<input type="radio" name="sex" value="male1">male1<br/>
<input type="radio" name="sex" value="male2">male2<br/>
<input type="radio" name="sex" value="male3">male3<br/>

我喜欢自行车：
<input type="checkbox" name="Bike">
<br />
我喜欢汽车：
<input type="checkbox" name="Car">
<button type=""  disabled>sssssssssssss</button>
<button type="submit">提交</button>
<input type = "reset" value = "重置" />
<input type = "button" value = "提交" onclick="alert('提交成功')"/>
</form>
</body>

</html>